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Texas Instruments LMR16006YQ5DDCRQ1
- Part No.:
- LMR16006YQ5DDCRQ1
- Manufacturer:
- Texas Instruments
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LMR16006YQ5DDCRQ1.pdf
- Description:
- IC REG BUCK 5V 600MA SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:12,026
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Product details
Overview
LMR16006YQ5DDCRQ1 from Texas Instruments is an automotive-grade synchronous buck DC-DC regulator delivering up to 600 mA output current with fixed 5 V output, 2.1 MHz switching frequency, 0.765 V feedback reference, and AEC-Q100 Grade 1 qualification (–40°C to +125°C). It operates from 4 V to 40 V input, supports 97% duty cycle, and targets power conditioning in vehicle infotainment and ADAS subsystems.
For engineers reviewing the LMR16006YQ5DDCRQ1 datasheet, LMR16006YQ5DDCRQ1 pinout, LMR16006YQ5DDCRQ1 application, or LMR16006YQ5DDCRQ1 equivalent, key selection considerations include its ECO mode quiescent current (28 µA), shutdown current (1 µA), integrated boot diode, internal compensation, and SOT-6L package thermal performance (RθJA = 102°C/W).
Technical Context
The LMR16006YQ5DDCRQ1 implements constant-frequency peak current-mode control with internal slope compensation and leading-edge blanking for stable transient response. Its integrated high-side MOSFET features 900 mΩ RDS(on) and is driven via a bootstrap capacitor connected between CB and SW pins, enabling high-duty-cycle operation up to 97%.
It includes overcurrent protection via cycle-by-cycle current limiting, thermal shutdown at 170°C with 10°C hysteresis, and overvoltage transient protection (OVTP) that disables the high-side switch when FB exceeds 108% of the 0.765 V reference-critical for low-capacitance output designs recovering from load transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4 V to 40 V - supports wide automotive battery range including cold-crank (4 V) and load-dump transients (up to 65 V absolute max) |
| Output Voltage | Fixed 5 V ±3% - eliminates external feedback resistors; enables plug-and-play integration in 5 V rail systems |
| Max Output Current | 600 mA - sufficient for powering microcontrollers, sensors, and interface ICs in compact automotive modules |
| Switching Frequency | 2.1 MHz (±15%) - allows use of small 6.8 µH inductors and 10 µF ceramic output capacitors, reducing solution footprint |
| Quiescent Current | 28 µA in ECO mode - extends battery life in always-on vehicle subsystems such as telematics and CAN gateways |
| Shutdown Current | 1 µA - minimizes parasitic drain during vehicle sleep mode, meeting OEM quiescent current budgets |
| Feedback Reference | 0.765 V (±2.3%) - sets precision output regulation; enables accurate adjustable versions via resistor divider |
| Thermal Shutdown | 170°C trip, 160°C recovery - protects against sustained overload or poor PCB thermal design without latch-up |
Pinout & Package
LMR16006YQ5DDCRQ1 is housed in a thermally enhanced 6-pin SOT-6L (DDC) package measuring 2.9 mm × 1.6 mm × 0.95 mm, optimized for high-power-density automotive layouts with exposed pad thermal path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CB | Bootstrap bias supply | Connects external 100 nF ceramic capacitor to SW; supplies gate drive voltage for internal high-side MOSFET |
| GND | Power and signal ground | Primary return path for input/output currents and internal circuitry; must be low-impedance connection to PCB ground plane |
| FB | Feedback input | Monitors regulated output via internal 0.765 V reference; unused in fixed-5V version but internally tied to internal divider |
| SHDN | Enable/disable control | High-voltage tolerant (65 V max); pulled up internally; logic-low ≤1.25 V disables regulator and reduces current to 1 µA |
| VIN | Main power input | Supplies internal bias and drives high-side MOSFET drain; accepts 4–40 V with transient rating up to 65 V |
| SW | Switch node | Connects to inductor, catch diode (or sync FET), and CB capacitor; carries high dv/dt switching waveform requiring careful layout |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C junction operation - meets automotive reliability and lifetime requirements without derating |
| Integrated boot diode | Eliminates external bootstrap diode - reduces BOM count, improves efficiency, and simplifies layout in space-constrained modules |
| Internal soft-start | Controls output ramp rate during startup - prevents inrush current and avoids triggering upstream current-limiting circuits |
| Overvoltage transient protection (OVTP) | Clamps high-side switch when FB > 0.826 V - suppresses output overshoot during fast load release, critical for low-ESR ceramic capacitor designs |
| 97% maximum duty cycle | Enables operation down to VIN = 5.15 V at 5 V output - supports extended operation during automotive cold-crank conditions |
| Internal compensation | Removes need for external compensation network - accelerates design cycle and ensures stability across recommended component ranges |
Applications
| Automotive Infotainment Power | ADAS Camera Module Supply |
|---|---|
Use Scenario: Powers display controllers, audio codecs, and USB hubs in head-unit systems with variable battery input and strict EMI limits. IC Role / Device Role / Timing Role: Primary 5 V buck regulator providing clean, low-noise power with 2.1 MHz switching to avoid AM radio band interference. Use Value: ECO mode (28 µA) maintains system readiness during vehicle sleep; 1 µA shutdown enables deep-sleep compliance per ISO 16750-2. | Use Scenario: Supplies image sensor, ISP, and serializer in rear-view or surround-view camera modules mounted in hot under-hood locations. IC Role / Device Role / Timing Role: High-reliability 5 V source operating continuously at junction temperatures up to +125°C with built-in thermal shutdown. Use Value: AEC-Q100 Grade 1 qualification and 102°C/W thermal resistance ensure long-term operation without derating in sealed enclosures. |
| Telematics Control Unit (TCU) | Aftermarket GPS Navigation |
Use Scenario: Provides main 5 V rail for cellular modem, GNSS receiver, and MCU in always-connected vehicle tracking units. IC Role / Device Role / Timing Role: Input-conditioning buck converter handling wide-input transients (4–40 V) and supporting CAN/LIN bus interface ICs. Use Value: 65 V absolute max VIN withstands load-dump events; internal OVTP prevents data corruption during sudden load removal. | Use Scenario: Powers GPS module, touchscreen controller, and Bluetooth audio in plug-and-play dash-mounted navigation devices. IC Role / Device Role / Timing Role: Compact, fixed-output DC-DC regulator replacing linear regulators to improve thermal performance and battery runtime. Use Value: SOT-6L package (2.9 × 1.6 mm) enables ultra-thin mechanical design; 2.1 MHz switching allows miniature passive components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMR14006Q5DDARQ1 | 40 V input, 600 mA, 2.1 MHz, fixed 5 V - identical pinout and feature set but rated for 140 V transient (vs. 65 V) | Required where ISO 7637-2 Pulse 5a (140 V/100 ms) compliance is mandatory beyond standard load-dump | Select when higher transient immunity is needed; otherwise LMR16006YQ5DDCRQ1 offers optimal cost/performance for most automotive ECUs |
| TPS54360BQDDAQ1 | 60 V input, 3.5 A, 100 kHz–2.5 MHz adjustable frequency - larger SOT-23-8 package, higher current, external compensation | Suitable for higher-power applications or designs requiring programmable frequency or external loop tuning | Choose only if >600 mA output or frequency flexibility is required; adds complexity and board area vs. LMR16006YQ5DDCRQ1's integrated solution |
Compared with LMR14006Q5DDARQ1 and TPS54360BQDDAQ1, the LMR16006YQ5DDCRQ1 delivers optimal balance of size, efficiency, and automotive qualification for sub-600 mA 5 V rails-offering smallest footprint, lowest quiescent current, and fastest time-to-market without sacrificing AEC-Q100 compliance.
Availability
LMR16006YQ5DDCRQ1 is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, and telematics control units requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for LMR16006YQ5DDCRQ1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and automotive ICs, with decades of experience in power management innovation.
The LMR16006Y-Q1 product line delivers high-efficiency, small-footprint buck regulators engineered specifically for automotive power systems demanding AEC-Q100 qualification, wide input range, and ultra-low quiescent current.
FAQ
What is the maximum input voltage rating for LMR16006YQ5DDCRQ1?
The LMR16006YQ5DDCRQ1 has an absolute maximum input voltage rating of 65 V, allowing it to survive automotive load-dump transients per ISO 7637-2. Its recommended operating input range is 4 V to 40 V, covering cold-crank (down to 4 V) through normal battery operation. This rating is confirmed in Section 7.1 Absolute Maximum Ratings of the SNVSAC1 datasheet.
Does LMR16006YQ5DDCRQ1 require external compensation components?
No, the LMR16006YQ5DDCRQ1 features fully internal compensation, eliminating the need for external RC networks on the COMP pin. This is explicitly stated in the Features section and validated in Section 8.3.7 of the datasheet. The internal compensation is optimized for standard 6.8 µH inductors and 10 µF ceramic output capacitors, simplifying design and improving robustness across temperature and manufacturing variation.
How does the ECO mode function in LMR16006YQ5DDCRQ1?
LMR16006YQ5DDCRQ1 enters ECO mode automatically when output voltage is regulated and peak inductor current falls below ~80 mA-typically at light loads (<100 mA). In this mode, switching frequency is reduced and gate drive losses minimized, lowering quiescent current to 28 µA. This behavior is detailed in Section 8.4.2 and enables extended battery life in always-on automotive subsystems without compromising regulation accuracy.
What package type and thermal characteristics does LMR16006YQ5DDCRQ1 use?
The LMR16006YQ5DDCRQ1 uses the DDC (SOT-6L) package: a 6-pin, 2.9 mm × 1.6 mm surface-mount outline with exposed thermal pad. Its thermal resistance is RθJA = 102°C/W (JEDEC JESD51-7, 4-layer board), RθJC(top) = 36.9°C/W, and RθJB = 28.4°C/W. These values are specified in Section 7.4 and enable reliable 600 mA operation in compact automotive PCB layouts with appropriate copper area and thermal vias.
Is LMR16006YQ5DDCRQ1 pin-compatible with other members of the LMR16006Y-Q1 family?
Yes, all LMR16006Y-Q1 variants-including LMR16006YQ5DDCRQ1 (fixed 5 V), LMR16006YQ3DDCRQ1 (fixed 3.3 V), and LMR16006YQDDCRQ1 (adjustable)-share identical DDC (SOT-6L) pinout, package dimensions, and PCB footprint. This allows single-layout flexibility across output voltage options, as confirmed in the "Device Information" table and Pin Configuration section of the SNVSAC1 datasheet.
LMR16006YQ5DDCRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- SIMPLE SWITCHER®
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4V
- Voltage - Input (Max):
- 40V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 600mA
- Frequency - Switching:
- 2.1MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-THIN
LMR16006YQ5DDCRQ1 FAQ
1.How can I place an order for LMR16006YQ5DDCRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMR16006YQ5DDCRQ1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LMR16006YQ5DDCRQ1 reliable?
The price and inventory of LMR16006YQ5DDCRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMR16006YQ5DDCRQ1 is usually 5 days.
3.What payment methods are accepted for LMR16006YQ5DDCRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMR16006YQ5DDCRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMR16006YQ5DDCRQ1?
LMR16006YQ5DDCRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMR16006YQ5DDCRQ1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LMR16006YQ5DDCRQ1?
For technical support, including LMR16006YQ5DDCRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMR16006YQ5DDCRQ1 requirements.
6.How does Aetrix verify that LMR16006YQ5DDCRQ1 is sourced from the original manufacturer or authorized distributors?
All LMR16006YQ5DDCRQ1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LMR16006YQ5DDCRQ1 meets industry standards.
7.What is the process for return or replacement of LMR16006YQ5DDCRQ1?
All LMR16006YQ5DDCRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with LMR16006YQ5DDCRQ1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LMR16006YQ5DDCRQ1 part is unused and in its original packaging.
Return procedure for LMR16006YQ5DDCRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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